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Observational Evidence for Atmospheric Physical Characteristics Relevant to Stellar Evolution
Highlights of Astronomy
As a star burns its nuclear fuel, its radius R and its luminosity L are modified. Its mass may as well be affected if the mass loss rate has a time scale comparable to the nuclear time scale; this is likely to occur for stars of very high luminosity. Currently, the change in radius R and luminosity L of an evolving star is described in the socalled theoretical Herzsprung-Russel diagramme with in abscissa the logarithm of the effective temperature defined by:doi:10.1017/s1539299600003208 fatcat:jqf5ltsttjbenc5fphsoekqo5m